Intermediate pinker for fabrics



@pt 9, i947.

V. J. SIGODA INTERMEDIATE PINKER F0 R FABRICS Filed March 16, 1945 2 Sheets-Sheet l ITTIIII I N VEN TOR. VICTOR 4/. 5700::

ATTORNEYS,

9, 194-70 V J SIGQDA ZQZZDZ INTERMEDIATE PINKER FOR FABRICS Filed March 16, 1945 2 Sheets-Sheet 2 fiy INVEN TOR. 16 Me 70/: d. 5/6004 A TTORNE Y5.

Patented Sept. 9, 1947 INTERMEDIATE PINKER FOR FABRICS Victor J. Sigoda, Great Neck, N. Y., assignor to Man-Sew Corporation, New York, N. Y., a corporation of New York Application March 16, 1945, Serial No. 583,130

Claims.

This invention relates to pinking machines of the type disclosed in Patents No. 2,295,610, September 10, 1942, 2,159,716 and 2,159,717, May 23, 1939.

For the purpose of edge pinking fabrics the patented machines are highly efiicient. However, in order to eliminate excessive waste, it is frequently desirable, in a single pinking operation to divide a Wide fabric sheet of material not desired to be folded into two sections, each having a pinked edge for use in the manufacture of an article of apparel or other products. The patented machines cannot be used for the latter purpose since the means for mounting or supporting parts of the drive mechanism for the pinking wheel and the pressure roller which cooperates therewith, above the base plate of the machine obstructs the feeding movement of the fabric sheet to the pinking Wheel.

It is accordingly the general object and purpose of my present invention to provide a pinking machine of this kind in which the upper surface of the machine base over which the fabric is fed to the pinking wheel is entirely free of projecting parts which would interfere with or obstruct the rearward feeding movement of a fabric sheet to the pinking wheel at an intermediate point of its width so that in a single operation, two fabric sections each having a pinked edge are provided.

Another object of the invention is to provide an improved mounting of a pressure roller supporting and adjusting arm upon the machine base in parallel relation to the direction of feed of the material so that after the pinking cuts are made the two fabric sections may freely move over the base along divergent paths and without interference by said arm or the mounting means therefor.

It is a further object of the invention to provide a novel assembly of the pinking cutter, the operating mechanism therefor and the fabric feeding means together with the base plate and pressure roller whereby the machine may be shipped in knocked down condition and easily and quickly assembled for use without requiring unusual manual skill or dexterity.

It is an additional object of the invention to provide a very simple common supporting structure for the cutter Wheel, feed wheel and drive mechanism whereby the same may be easily and quickly detachably mounted on the underside of the machine base.

It is also the aim and purpose of the present invention to generally improve and simplify the prior patented constructions, employing a minimum number of mechanical elements of rugged and durable structural form having long life, and capable of consistently eificient operation with minimum maintenance expense.

With the above and other objects in view, the invention comprises the improved pinking machine and the construction and relative arrangement of its several parts, as will hereinafter be more fully described, illustrated in the accompanying drawings and subsequently incorporated in the subjoined claims.

In the drawings wherein I have disclosed several simple and practical embodiments of the invention and in which similar reference characters designate corresponding parts throughout the several views;

Figure 1 is a plan View illustrating the present improvement as applied to one well known type of pinking machine in which the pinking knife rotates in a horizontal plane;

Figure 2 is a vertical sectional view;

Figure 3 is a transverse sectional view taken substantially on the line 3--3 of Figure 2;

Figure 4 is a top plan view of the supporting structure or housing for the pinking wheel, its drive mechanism and the work feeding wheel;

Figure 5 is a vertical sectional view showing the present improvement as applied to the type of pinking machine in which the pinking wheel rotates in a vertical plane; and

Figure 6 is a plan view, similar to Figure 4, of the mechanism shown in Figure 5.

Referring in further detail to the construction shown in Figures 1 to 4 of the drawings, the base plate In of the machine is mounted upon the work bench or table in customary manner. This base plate is provided with a circular opening l2 therein and a transversely extending slot 14 at one side of said opening in tangential relation thereto. The purpose of this construction of the base plate 10 will be presently explained.

Upon the under side of the base plate, the supporting structure for the pinking and work feed mechanism is detachably secured. As herein shown, this structure comprises a single integral casting generally indicated at It, this casting being of elongated rectangular form and having a bottom wall l8, end walls [9 and 20 respectively, and intermediate, longitudinally spaced transverse walls 22 and. 24. These end and transverse walls are integrally connected with each other by the opposite side walls of the casting and at the juncture of the side and end walls, at the top of the structure, suitable provisions are made structure l5 and adjacent to said bearing isformed with the worm 38. This-worm has-mesh ing engagement with the teeth of a worm gear 38 having a downwardly extending stud shaftw I journalled in a suitable bearing 40 on the bottom Wall l8 of the structure 16 in concentric relation with the opening I2 in the base plate It; A? cylindrical hub 32 is secured to or integrally formed with the gear 38 and extends upwardly therefrom. The upper end of this hub has a central stud 44 toextendupwardly througha central opening in the .pinking wheel 45. The wheel: 45 is provided with. equidistantl'y spaced openings for the attaching screws 48 whereby said pinking wheel. is rigidly secured uponthe upper end of the hub: 42 within the-opening iii! of. theabase platea. This wheel has an annular series of pinking teeth 59 on. its upper face, as shown in Patent. No. 2295,6 10.

Substantially in alignment with the axis-.of the worm gear 33', a shaft 52 is rigidly fixed at: its opposite ends in the transverse walls I 8 and 22 of the casting is. Upon this shaft the driving disc 54 for the workfeeding 'wheel 55' is loosely mounted; This feeding wheel extends upwardly into the slot M-in the base plate It! and its-peripheral surface is preferably knurled for proper grippingcontact with the under surface of the work. The teeth of the pinking wheel ifi and the knurled surface of the feeding wheel 56 project slightly above the plane of the top surface of thebase plate l8.

As shown in Patent-No; 22295510, thebottom face 'of the pinking wheel-Mi has frictional driving contact'with the periphery of the disc-5=l while the feeding disc 56-- is urged into frictional cont-act against the outer sideface of the disc 5 by the resilient spider 58;

The feeding wheel 56 has a large centralopening so that it may eccentrically shift relative to the driving disc 54 as in the patented construction and automatically accommodate itself for operation upon materials of varying thicknesses;

In alignment with the-slot Id in the'ba-se plate HI and spaced rearwardly therefrom the lower end of a vertical rod Ellis fixed in said'baseplate. A-n arm 62 has a vertical opening loosely receiving' the rod 50'; said arm having a relatively short end portion 64 extending rearwardly from the rod 68 and supported for vertical rocking movement relative to said rod by means of thelaterally spaced downwardly projecting .pins 66 fixed in saidrear end 64 of the arm and terminating in the balls or spheres 68 having rocking movement on concave'seats formedinthe bearing plate Til; This plate may be secured to the top surface of thebase plate Ill-in any suitable manner, as for instance by means of the studs 12 having a driving fitin apertures formed in the base plate.

At its-forward end; a pressure roller 14 is rotatably mounted'in thearmBZ upon the pin or shaft lfi-fixedto said arm whichis substantially in vertical alignment with the axis of the shaft 52. This roller is yieldingly urged downwardly upon the work as it is fed rearwardly-overthe basepl'ate ill by means of the coil spring 18 surrounding the rod 60 above the arm 62 and bearing at its upper end against the wing nut 88 adjustably threaded upon the upper end of said rod. Thus by the adjustment of this nut the tension of the spring 78 may be regulated so that the roller 74 will exert the required downward pressure in accordance with the thickness and texture of the fabric for the most effectiveaction of the feeding wheel 56 and the pinking wheel 46 thereon.

Referring now to Figure 1 of the drawings, it will be evident that as the pinking wheel 46 is rotated in the clockwise direction, rotation will be transmitted to-the feeding wheel 56 by the disc 5 t ogfeedfthewid'e fabric sheet indicated at F rearwardly over the surface of the base plate 10 and between the pressure roller 14 and the teeth 56 of the pinking wheel. Thus the fabric may be cut into two sections of equal or unequal widths, each having a pinked edge as shown at P. As the pinked. edges: of the fabric. sections move. rearwardly from the point of. pressure contact. of the roller 14 therewith,. they'separate and move in divergent paths at opposite sides of the arm 62 over the. rear edge of' the base plate Ht. Since there is no lateral protrusion of any; parts of the arm 52 or the supporting means thereof which would catch or obstructthe free movement of the fabric sections over the base-plataalldanger of these sections piling up. upon the surface. ofthe base plate at the rear side of the roller 14; and interfering with the proper operation of the pinking' mechanism, is obviated.

In Figures 5 and 6 of the drawings, I have shown another embodiment of-the present invention as applied to a machine'of'the type described in Patent. No. 2;169,7L7, in which the pinking wheel: or knife rotates in a vertical instead: of: a horizontal plane. In this case, the unitary; sup.- porting structure for the work feedingand-pinking mechanism and the-drive. means therefor, is substantially the. same as that above described;

However, the supporting structure or casting 82 is relatively short and the. shaft; 8.61 mounted therein. corresponding; to the: shaft 1:8: off said patent, has a spur gear ii'ifi'xed at one end thereof? in mesh with the pinion. Elton the drive shaft 98; Tothei other endiof'the'shaft. as the pinking wheel. 92v isv fixed. substantially as shown in said issued patent and the eccentrically shiftablework feeding wheel or disc 94: is.resi1iently urged: into frictional contact with the outer'si'de. face of. said pinking wheel by means of thespider 96; inisimilar manner to the construction: shown: in Figure 2. In this case the base plate. misnot provided with a circular opening, but onlywith the transversely disposed slot 98 which is relatively wide t'o-receive the upper edge portions of the pinking; wheel 92 and the work feeding wheel M. It will of course be understood that the teeth of the pinking wheel 92' project above-the upper surface of plate H): The roller 74 ismounted above the base plate substantially in the manner previously described to yieldingly press the fabric material upon the peripheries of the pinking wheel; and the work feeding disc or wheel 94 It will be obvious that thisform of the invention also per"- mits the free unobstructed movement of a- Wide fabric sheet over the base-plate H] as it"is cut or divided into two sections of substantially equal width each having a pinkededge.

In the use of the machines above described, after the operator positions the edge of the fabric sheet upon the surface ofthe'plate- If] and directs the same under the pressure applying roller and upon the teeth of the pinking wheel, the feeding movement of the material over the base plate is automatically continued by the work feeding disc or Wheel 56 and the pinking wheel. The wheel 56 insures a straight line feeding movement of the fabric to the pinking wheel in a rectilinear path at the point of tangential contact of the pressure roller upon the teeth of the pinking wheel. Thus uniformity in the shape and depth of the pinking cuts in the two fabric sections is obtained. By reason of the improved. mounting of the Work feeding and pinking means and its drive mechanism, the fabric sheet, which is frequently of a width substantially equal to the length of the base plate H3, may freely move over the surface of said plate without rolling or folding and possible damage by contact of the sheet with parts fixed to or projecting above the surface of the base plate. I

I may also provide suitable means located rearwardly of the pressure member id and in substantial alignment with the point of cutting contact of the pinking teeth with the work, for the purpose of positively separating the pinked edges of the work and directing the same along divergent paths rearwardly over the surface of the base plate It. In the present instance, I have shown this work separating means in the form of a finger 63 depending from the arm 62 rearwardly of the presser roller M. This finger tapers substantially to a point at its forward end which is located in alignment with the point of pressure contact of roller '14 upon the teeth of the pinking wheel. The lower end of this finger may be received in a suitable depression or recess in the plate ID. It will be apparent that, in the rearward movement of the work beyond the teeth of the pinking wheel, the finger 63 will engage the opposed pinked edges and the opposite side faces of said finger will direct said pinked edges of the work along divergent paths as the work moves rearwardly over the surface of the base plate Ill. The provision of this work separating means is a further assurance against any possibility of contact of the pinked edges of the work with the fixed rod 80 or the mounting pins 66 at the rear end of the arm 52.

It will be apparent that, when desired, the machine may also be employed for the purpose of edge pinking fabrics by merely attaching a fabric edge guiding member to the base plate It? in advance of the pressure applying roller, similar to the member 52 shown in Patent No. 2,295,610.

From the foregoing description the construction and several advantages of the illustrated'embodiments of my invention will be readily understood. It. will be seen that I have provided a very simple means for adjustably mounting the pressure roller upon the base plate to which will in no way interfere with or obstruct the free movement of the fabric over said base plate rearwardly of the roller. Also the particular means employed for rockably mounting the roller carrying arm 62 for movement in a vertical plane assures exact parallelism between the peripheral surface of said roller and the periphery of the feeding wheel with substantially uniform pressure of the fabric material upon the cutting edges of the pinking teeth. The mounting of the pinking and feeding mechanism with the drive means therefor in a common supporting structure detachably secured to the base plate facilitates the easy and quick removal of these parts, from as- 'sembled position on said base plate when cleaning or repairs become necessary. This feature also permits the several parts of the machine to be shipped in compact knocked down condition, to be easily and quickly assembled by the consignee without requiring unusual manual skill. It will also be appreciated that the present invention comprises relatively few mechanical parts which are of simple and durable structural form and can be fabricated at comparatively small cost, thus enabling such a machine to be profitably produced and soldat appreciably less cost to the purchaser than machines heretofore devised for this purpose.

The invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

What is claimed and desired to be secured by United States Letters Patent is:

1. In a pinking machine, a base plate having an opening therein, a rotatable pinking member having cutting teeth moving in said opening at the upper surface of the base plate, a member above said opening to press the work upon said cutting teeth, and a spring pressed support for said member directly mounted on the base plate for movement in a vertical plane to yieldingly press said member upon the work, said support extending in the direction of feed of the work rearwardly of the point of contact of said presser member with the work and having all of its parts in substantial alignment with said member transversely of the base plate.

2. The pinking machine defined in claim 1 together with operating means for the pinking member wholly mounted upon and beneath said base plate.

3. The pinking machine defined in claim 1, in which said support includes a spring pressed arm pivotally supported at its rear end on the base and said presser member comprises a roller mounted in the forward end of said arm.

4. The pinking machine defined in claim 1, in which said support comprises a spring pressed arm in the forward end of which said presser member is mounted, and. laterally spaced studs fixed in the rear end of said arm in rocking contact with bearing seats on the base plate.

5. In a pinking machine, a base plate, pinking and work sheet feeding means, said base plate having means to receive said pinking and feeding means for cooperative relative movement thereof at the upper surface of said plate, said surface being otherwise unobstructed throughout its area at each side of the line of feed of an unfolded work sheet to the pinking means, driving mechanism for said feeding and pinking means, and means on the underside of the base plate for operatively supporting said feeding and pinking means and all parts of said driving mechanism.

6. The pinking machine defined in claim 5 in which said last named means comprises a unitary supporting structure for said pinking and feeding means and driving mechanism, detachably secured to the underside of the base plate.

'7. The pinking machine defined in claim 1, wherein additional means for separating the pinked edges of the work is located rearwardly of the presser member in substantial alignment with i8 atheflpointcofscuttingzcontaotm the pinkingmem- 1in-thefrontend of the arm; in opposed relation berwith'the work. tozthe pinking teeth,:and means coacting with -':8. The :pinking :mach-ine idefined in claim 1, said arm adjacent toits-rear end to resist rockwhereiirsaid support forthepressermembercom- .ing motion thereof in'one direction and yieldprisesanrarm'havingza-idepending'forwardlyta- :5 'ingly urge 'saidmember into contact with the pering; finger rearwardlygspaeed. from .thapresswork. ermemberatoengage-anddirectthegpinkeckedges 10. The pinking machine defined in claim.9 ,ofthe work along divergent; paths overt-he :surtogether with adjustable means coacting with facetof thebasegplate. said-last named means to regulate the pressure 19. In a ,pinking :mach-ine, an elongated base r10 'of-said member onthe work. plate :having an opening :therein, a rotatable VICTOR J. SIGODA. member having pinking teeth :moving :in 1 said openingzat the iuppensurfaceof the "base; plate, REFERENCES CITED arm mounted ationefind lonthe'base plate The following references are of recordin'the in rearwardly: spaced relation .from -the pinleing 15 -fi1 of this mm; :member for rocking =.motiontransversely of 'the basegjplate in-a verticakplanecoincident with the UNITED STATES PATENTS .line of feed of the work to--said pinking member, "Number Name Date .sa-idibaseiplate having-an: other-wise unobstructed 1,973,388 Sigoda .Sept. 18, 1934 "top surface-fortransverse.feedinemovementeof ;:20 2,159,716 sigoda, May 23, 1939 the wvork thereover, t-a presser.membermounted 

